[notastartup]

can someone explain to me the application of Fig and Docker? Also, how do they differ?

One application I thought of is for deploying to client. You just get them to use the instance and there's zero configuration needed. but then, what if you need to make updates to the code base, how do you update the code changes to all the deployed fig/docker instances running already?

[ilaksh]

Ideally you run a new build and test it before deploying. If you wanted to you could include a gift pull in your startup script or run the pull over ssh in the container although you would need a trick to load the environment cars passed by docker.